Improvement in tools for graining in imitation of wood



R. A. ADAMS. EXTENSION GRAINING MACHINE.

No. 40,224. PatentedOct. 13, 1863.

UNITED STATES PATENT OFFICE.

ROBERT A. ADAMS, OF CHlCAGO, ILLINOIS.

IMPROVEMENT IN TOQLS FOR GRAINING IN IMITATION OF WOOD.

Specification forming part of Letters Patent N0. 40,224, dated October 13, 1863 To all whom it may concern.-

Be it known that 1, ROBERT A. ADAMS, of Chicago, in the county of Cookand State of Illinois, have invented a new and useful extension-machinefor the purpose of graining in imitation of various woods, marbles, &c.;and I do hereby declare that the following is a full, clearfand exactdescription of the construction and operation of the same, referencebeing bad to the annexed drawings, making a part of this specification.in which- Figure 1 represents the end, Fig. 2 the s de, Fig. 3 the hack,and Fig. 4 the face, of fihi machine.

The nature of my invention consists in providing a frame of any.required size, made of brass, iron, or other material, and in twosections, one section sliding into the other, so that the machine may bemade longer or shorter by extension or contraction to tit the space tobe grained, and adapting to the front or face thereof an elastic plate,with 1 ke capacity of extension or contraction, on which is carved orcast the figure of the various woods, marbles, or ornaments intended tobe transferred or grained.

To enable Others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

Zach side and the center of the frame of said machine is composed oftwoparallel bars or plates of the metal used, (see letter A in Figs. 2 and3,) one bar or plate belonging to each section, they being held so as toslide closely together by tongue and groove or by clevys, (see letter Bin Figs. 2 and 3,) or by both, so that in the extension and contractionof the machine they slide in opposite directions; and the two sectionsare held in the position required for use by ratchet or other suitablefastening on the sides or center of the frame. (See letter (J in Figs. 2and 3.) On the back of the frame, at both ends and on each side thereof,are hooks upon which to fasten the rubber and plate hereinaftermentioned, (see letter 1) in Fig; 2,) and also an eye in which to securethe handles of the machine. (See letter E in Fig. 2.) {This frame is tobe made straight, crescent, orany other suitable shape, On the frontside or face of each section of said frame thin plates of tin,

zinc, copper, brass, or iron, are soldered, riveted, or cast, the metalplate of one section sliding closely under the other. (See letter F inFig. 3.) Then take a piece of pure vulcanized rubber, G, of the. lengthrequired by the frame, and alittle wider than the frame, so that wheneitended it will retain width sutiicien'tto cover the frame, and fasteneach end securely into a link, K, made of wire. This is laid upon thefront side or face of the frame and made fast thereto by catching thewire, link over the book 1.). (See letter G in Fig. 2.) Upon thevulcanized rubber Grv securely fasten an elasticptate, H, composed ofthe materials hereinafter mentioned, upon the, face of which shall becarved or cast the figure of the wood, marble, or ornament which isintended to be transferred or grained. (See letter ll in Fig. 2 and alsoFig. 4.) tie plate and rubber are permanently attached to each other,and form one part of the machine, and are so constructed and composed asto be extended or contracted without injury to the figure or materialwith the extension or contraction of the frame. The elastic plate iscomposed of the materials and in about the proportions following-to wit,two pounds glue, one pound honey. four ounces glycerine, and one-halfpint india-rubber disject to be grained.

What lclaim as my invention, and desire to secure by Letters Patent, isv The extension and adjustable frame A A, in combination with theelastic plate G H, in the manner and for the purposes herein described.

ROBERT A. ADAMS.

Witnesses:

SANFORD 13. PERRY, ELAM L. Kuo'r'r.

The elas-

